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Finding the Fourth Proportional to 88,573,761.60, 132,860,642.40 and 80,495,858.40

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Solution

The fourth proportional to 88,573,761.60, 132,860,642.40 and 80,495,858.40 is: 120,743,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,761.60 : 132,860,642.40 = 80,495,858.40 : x
  2. Step 2: Convert to fraction form
    88,573,761.60/132,860,642.40 = 80,495,858.40/x
  3. Step 3: Cross multiply
    88,573,761.60x = 132,860,642.40 × 80,495,858.40
  4. Step 4: Simplify right side
    88,573,761.60x = 10,694,731,457,563,438
  5. Step 5: Solve for x
    x = 10,694,731,457,563,438/88,573,761.60
  6. Step 6: Final answer
    x = 120,743,787.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.